The keyword refers to a highly secure configuration for Swissphone's legacy POCSAG pagers, combining the PSW900 programming software with IDEA™ (International Data Encryption Algorithm) encryption technology. While Swissphone has introduced newer software like PSWplus for modern devices like the s.QUAD series, the
: Contact Swissphone's customer support directly. They can provide you with the correct user manual or guide you to where it might be available. swissphone psw900 idea top